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Finding the Third Proportional to 4,230,976 and 9,135,247

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Solution

The third proportional to 4,230,976 and 9,135,247 is: 19,724,228.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,230,976 : 9,135,247 = 9,135,247 : x
  2. Step 2: Convert to fraction form
    4,230,976/9,135,247 = 9,135,247/x
  3. Step 3: Cross multiply
    4,230,976x = 9,135,247 × 9,135,247
  4. Step 4: Simplify right side
    4,230,976x = 83,452,737,751,009
  5. Step 5: Solve for x
    x = 83,452,737,751,009/4,230,976
  6. Step 6: Final answer
    x = 19,724,228.58

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.